Evidence map›Paper›PMID 31902370›Full record

ArticleJournal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance2020

Left ventricular function recovery in peripartum cardiomyopathy: a cardiovascular magnetic resonance study by myocardial T1 and T2 mapping.

Yao-Dan Liang, Yuan-Wei Xu, Wei-Hao Li, Ke Wan, Jia-Yu Sun, Jia-Yi Lin, Qing Zhang, Xiao-Yue Zhou, Yu-Cheng Chen

Abstract read
In one paragraph

Article in Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Pregnancy-Related Cardiovascular Diseases: A Radiological Overview.Journal of cardiovascular development and disease · 2025
    Review
  6. Article
  7. CMR and adverse clinical outcomes in peripartum cardiomyopathy.American heart journal plus : cardiology research and practice · 2024
    Article
  8. Review
  9. Article
  10. Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. T2 mapping in myocardial disease: a comprehensive review.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2022
    Review
  17. Review
  18. Article
  19. Review
  20. Peripartum cardiomyopathy management: insights from a Latin American case report.Archivos peruanos de cardiologia y cirugia cardiovascular
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Yao-Dan LiangDepartment of Cardiology, West China Hospital, Sichuan University, No.37, Guo Xue Xiang, Chengdu, Sichuan, 610041, People's Republic of China.
Yuan-Wei XuDepartment of Cardiology, West China Hospital, Sichuan University, No.37, Guo Xue Xiang, Chengdu, Sichuan, 610041, People's Republic of China.
Wei-Hao LiDepartment of Cardiology, West China Hospital, Sichuan University, No.37, Guo Xue Xiang, Chengdu, Sichuan, 610041, People's Republic of China.
Ke WanDepartment of Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Jia-Yu SunDepartment of Radiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Jia-Yi LinDepartment of Cardiology, West China Hospital, Sichuan University, No.37, Guo Xue Xiang, Chengdu, Sichuan, 610041, People's Republic of China.
Qing ZhangDepartment of Cardiology, West China Hospital, Sichuan University, No.37, Guo Xue Xiang, Chengdu, Sichuan, 610041, People's Republic of China.
Xiao-Yue ZhouMR Collaboration, Siemens Healthineers Ltd., Shanghai, China.
Yu-Cheng ChenDepartment of Cardiology, West China Hospital, Sichuan University, No.37, Guo Xue Xiang, Chengdu, Sichuan, 610041, People's Republic of China. chenyucheng2003@126.com.ORCID 0000-0002-1771-4769

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPeripartum cardiomyopathy (PPCM) is rare and potentially life-threatening; its etiology remains unclear. Imaging characteristics on cardiovascular magnetic resonance (CMR) and their prognostic significance have rarely been studied. We sought to determine CMR's prognostic value in PPCM by using T1 and T2 mapping techniques.

methodsData from 21 PPCM patients from our CMR registry database were analyzed. The control group comprised 20 healthy age-matched females. All subjects underwent comprehensive contrast-enhanced CMR. T1 and T2 mapping using modified Look-Locker inversion recovery and T2 prep balanced steady-state free precession sequences, respectively. Ventricular size and function, late gadolinium enhancement (LGE), myocardial T1 value, extracellular volume (ECV), and T2 value were analyzed. Transthoracic echocardiography was performed at baseline and during follow-up. The recovered left ventricular ejection fraction (LVEF) was defined as LVEF ≥50% on echocardiography follow-up after at least 6 months of the diagnosis.

resultsCMR imaging showed that the PPCM patients had severely impaired LVEF and right ventricular ejection fraction (LVEF: 26.8 ± 10.6%; RVEF: 33.9 ± 14.6%). LGE was seen in eight (38.1%) cases. PPCM patients had significantly higher native T1 and ECV (1345 ± 79 vs. 1212 ± 32 ms, P < 0.001; 33.9 ± 5.2% vs. 27.1 ± 3.1%, P < 0.001; respectively) and higher myocardial T2 value (42.3 ± 3.7 vs. 36.8 ± 2.3 ms, P < 0.001) than did the normal controls. After a median 2.5-year follow-up (range: 8 months-5 years), six patients required readmission for heart failure, two died, and 10 showed left ventricular function recovery. The LVEF-recovered group showed significantly lower ECV (30.7 ± 2.1% vs. 36.8 ± 5.6%, P = 0.005) and T2 (40.6 ± 3.0 vs. 43.9 ± 3.7 ms, P = 0.040) than the unrecovered group. Multivariable logistic regression analysis showed ECV (OR = 0.58 for per 1% increase, P = 0.032) was independently associated with left ventricular recovery in PPCM.

conclusionsCompared to normal controls, PPCM patients showed significantly higher native T1, ECV, and T2. Native T1, ECV, and T2 were associated with LVEF recovery in PPCM. Furthermore, ECV could independently predict left ventricular function recovery in PPCM.

Indexed as

Magnetic Resonance Imaging, CineStroke VolumeVentricular Function, LeftAdultCardiomyopathiesCase-Control StudiesDatabases, FactualFemaleHumansObserver VariationPeripartum PeriodPredictive Value of TestsPregnancyPregnancy Complications, CardiovascularRecovery of FunctionReproducibility of ResultsCardiovascular magnetic resonanceExtracellular volumeLeft ventricular function recoveryPeripartum cardiomyopathyT1 mappingT2 mapping

Identifiers

PMID31902370
PMCPMC6943890

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.